Depositing ages of sediment in core CK6 of Qarhan Salt Lake were determined by usingmethods of ^(14)C, ^(230)Th and paleo-terrestrial-magnetism. Based on synthetic analyses for thevariation of the content of organic c...Depositing ages of sediment in core CK6 of Qarhan Salt Lake were determined by usingmethods of ^(14)C, ^(230)Th and paleo-terrestrial-magnetism. Based on synthetic analyses for thevariation of the content of organic carbon, sporo-pollen composition and lithofacies, the fluc-tuating model of paleo-climate since 750 ka B.P. was set up. It is divided into 21 fluctua-ting epochs of climate, among them, 11 are warm and humid epochs, and 10 are dry andcold epochs.展开更多
The Qinghai Lake is the biggest plateau brackish water lake in China. In 1981, the average water level is 3193.92 m, the maximum depth is 27 m, and the area is 4340 km^2. Several million years ago, the lake deposited ...The Qinghai Lake is the biggest plateau brackish water lake in China. In 1981, the average water level is 3193.92 m, the maximum depth is 27 m, and the area is 4340 km^2. Several million years ago, the lake deposited continuously, which is profitable for the study of paleoclimate evolution since the Late Pleistocene. On the basis of previous studies,展开更多
文摘Depositing ages of sediment in core CK6 of Qarhan Salt Lake were determined by usingmethods of ^(14)C, ^(230)Th and paleo-terrestrial-magnetism. Based on synthetic analyses for thevariation of the content of organic carbon, sporo-pollen composition and lithofacies, the fluc-tuating model of paleo-climate since 750 ka B.P. was set up. It is divided into 21 fluctua-ting epochs of climate, among them, 11 are warm and humid epochs, and 10 are dry andcold epochs.
文摘The Qinghai Lake is the biggest plateau brackish water lake in China. In 1981, the average water level is 3193.92 m, the maximum depth is 27 m, and the area is 4340 km^2. Several million years ago, the lake deposited continuously, which is profitable for the study of paleoclimate evolution since the Late Pleistocene. On the basis of previous studies,
